失效的服務

1. 查看失效的服務。
   

   [root@kvm7 ~]# systemctl --failed --type=service
   UNIT          LOAD   ACTIVE SUB    DESCRIPTION
   kdump.service loaded failed failed Crash recovery kernel arming
   rhnsd.service loaded failed failed LSB: Starts the Spacewalk Daemon
   
   LOAD   = Reflects whether the unit definition was properly loaded.
   ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
   SUB    = The low-level unit activation state, values depend on unit type.
   
   2 loaded units listed. Pass --all to see loaded but inactive units, too.
   To show all installed unit files use 'systemctl list-unit-files'.